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Fidue Sirius A91 Earphones

$1,249.00 $1,159.00

recommendedFor those that are Sirius about their audio the A91 features a 5 way hybrid driver design.

In stock

SKU: FIDSIRIUS Categories: , Tag: Brand:

The Fidue Sirius A91 features a 5-way hybrid driver technology combining both dynamic and armature designs.

The Fidue Sirius A91 features 4 hi-end balanced armature drivers which ensure high-definition resolution resulting in lively instruments and voices and high levels of separation and detail.

A single customised bass dynamic driver will surpass conventional armature-only bass diving ability making music fuller and extended so you won’t miss out on low frequencies.

3D acoustic cavity coil design creates suitable voice space for the voice attributes of every unit by means of delicate 3D analysis.

Full-frequency fractional frequency tuning makes 5 high-quality drivers with different attributes combine perfectly.


Lower internal resistance 8 cores silver plating balance cable

  • Compared with most earphones with 4 cores or 3 cores wire rod, it doubles the wire rod. As great reduction of the internal resistance of wire rod, the signal becomes more clear and prompt.

Original 2.5mm quadrupole balanced designed plug

  • Equipped with 3.5mm balanced convert cable and stereo universal cable

Tougher all-metal shell

  • High precise CNC incision and rigorous assembly technique make Sirius utterly natural.

The fourth generation MMCX locking design

  • The special made stainless steel structure makes the connection of MMCX more stable and durable.

Excellent wearing design to be more supra-aural

  • More than a hundred of experiments and adjustments only for better fit auricle and excellently isolate noise.

More stable over-ear-style sport wearing

  • No matter in stage, train, gym or street, you can absorb in your music.

Music flame,completely display

  • Sirius, its every design is deliberate, and every part is carefully considered. Just because every detail will affect the excellent performance of sound quality and wearing. The pursuit of delicacy, the painstaking research and consideration about 700 days make the right product.



  • Color: Dark Grey
  • Driving Units: 4 Balanced Amarture driver & 1 dynamic driver
  • Frequency Response: 4-45000 Hz
  • Impedance: 20Ω
  • Sensitivity: 113Db
  • Input Power: 30mW
  • Total Harmonic Distortion: <1%
  • Plug: Protogenous 2.5mm balance stereo rhodium plating plug
  • Cable Length: 1.3m 8cores silver plating OFC audiophile cable
  • Converting Cable: 2.5 to 3.5mm quadrupole balance converting plug; 2.5 to 3.5 mm universal stereo converting plug
  • Applicable products: iphone, Samsung, HTC, Xiaomi, Meizu(all models), Ipad (Tablet&PC). It applies to 99% market electronic products


Package Contents

  • Fidue Sirius A91 earphone
  • Monolayer silicone case x 4
  • Comply T500 memory sponge cover x1 pair
  • Holder belt x1
  • Disassemble kit x1
  • Clean kit x1
  • Tailor-made aluminum alloy housing case x1
  • Aviation stereo plug x1
  • 3.5 to 6.3 stereo converter x1